A Secure E-Exam Management System Jordi Castell` -Roca† ‚Jordi Herrera-Joancomarti‡ and Aleix Dorca-Josa§ a † Rovira i Virgili University of Tarragona‚ Dept. of Computer Engineering and Maths‚ Av. Paisos Catalans‚ 26‚ E-43007 Tarragona‚ Catalonia ‡ Universitat Oberta de Catalunya‚ Av. Tibidabo 39‚ 08035 Barcelona § Universitat d’Andorra‚ Placa de la Germandat‚ 7‚ AD600 Sant Juli` de L` ria‚ Principat d’Andorra ¸ a o E-mail: † jordi.castella@urv.net‚ ‡ jordiherrera@uoc.edu‚ § adorca@uda.ad Abstract
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TERRA SANCTA COLLEGE Student No: English Stage 5 Year 10 Unit 1: Indigenous Australian Poetry Oodgeroo Noonuccal Oral Task Semester 1‚ Term 1‚ 2014 Class: Assessment Task No: 1 Mode: Reading/Speaking Date Due: Weighting: 25% First scheduled lesson‚ Week 7‚ Term 1‚ 2014 OUTCOMES BEING ASSESSED GRADE 4: A student selects and uses language forms and features‚ and structures of texts according to different purposes‚ audiences and contexts‚ and describes and explains their effects on meaning
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The Enigma Machine and How it Worked.-Ibrahim Rashid What is the Enigma Machine: The enigma machine was a coding device that was used by the Germans during World War 2 to write‚ send‚ and decipher encrypted messages. How did it work: The enigma machine was a very complicated device. On the inside of the machine there were three rotors that contained all 26 letters of the alphabet. What would happen was that when someone would press a letter on the keyboard‚ a different letter would pop up on
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Non-repudiation It refers to one of the properties of cryptographic digital signatures that offer the possibility of proving whether a particular message has been digitally signed by the holder of a particular digital signature’s private key. A digital signature owner‚ who may like to deny a transaction maliciously‚ may always claim that his or her digital signature key was stolen by someone and that someone actually signed the digital transaction in question‚ thus not accepting/denying the transaction
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Name: ________________________ Class: ___________________ Date: __________ CS11-Online-Chapter09 Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Computer crime is sometimes referred to as ____. a. hacking c. b. cybercrime d. ID: A cyberstalking spoofing ____ 2. ____ occurs whenever an individual gains access to a computer‚ network‚ file‚ or other resource without permission. a. Spoofing c. Phishing b. Unauthorized access d. Vandalizing
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2 INTRODUCTION TO CRYPTOGRAPHY 2.1 WHAT IS CRYPTOGRAPHY? The word cryptography comes from the Greek words κρυπτο (hidden or secret) and γραφη (writing). Oddly enough‚ cryptography is the art of secret writing. More generally‚ people think of cryptography as the art of mangling information into apparent unintelligibility in a manner allowing a secret method of unmangling. The basic service provided by cryptography is the ability to send information between participants in a way that prevents
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To break a message encrypted with private-key cryptography‚ it requires either to exploit a weakness in the encryption algorithm‚ or to try an exhaustive search of all possible keys (brute force method). Increase in key size is an e ective remedy for this. If the key is large enough (e.g.‚ 128 bits)‚ such a search would take a very long time (few years)‚ even with very powerful computers. Private-key methods are ecient and dicult to break[21]. However‚ one major drawback is that the key must be
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Some Applications of Coding Theory in Cryptography ii CIP-DATA LIBRARY TECHNISCHE UNIVERSITEIT EINDHOVEN Doumen‚ Jeroen M. Some applications of coding theory in cryptography / by Jeroen M. Doumen. – Eindhoven : Technische Universiteit Eindhoven‚ 2003. Proefschrift. – ISBN 90-386-0702-4 NUR 919 Subject headings : cryptology / coding theory / prime numbers 2000 Mathematics Subject Classification : 94A60‚ 11T71‚ 11A41 Printed by Eindhoven University Press. Cover by JWL Producties. Kindly supported
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CHAPTER ONE INTRODUCTION 1.1 BACKGROUND OF THE STUDY | | Transactions from the very beginning of time have being a vital part of the human race and have cut across every single part of the different sectors of our modern day society. Transaction is the art of exchanging good for services which could take different forms. or an instance of doing business of some kind‚ e.g.‚ a purchase made in a shop or a withdrawal of funds from a bank account according to the Encarta Dictionary. Thus
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Trusted cloud computing Cloud Computing is the technology of using central remote servers to maintain data and applications‚ and allows companies to use those shared resources without any care about installing or maintaining those resources. The main concern with this remote processing is the leak of data confidentially. This report summarizes the design of a trusted cloud computing platform (TCCP) for addressing this concern. Introduction To address the security leak in cloud computing environment
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